1995 Ford Explorer "heat until rev engine idle" Questions

until I turn on my heating/cooling system. Then Rpm's drop from 600 to 100. When I put the truck into gear the RPM's come up to about 300 and the vehicle surges then RPM's drop and it's safe for me to

...and it still won't blow heat until I rev it!!! I'm thinking these 2 issues might be related. Any suggestions? change the thermatstat it has aweak spring in it .could fail all together and over ...

...until cool. If I rev it up to 3000 rpm it will run just fine. Could it be the fuel accumulator? Doesn't it apply back pressure to the fuel line? The heat of the engine causes it to expand and cut-off ...

...until engine heats up (after about 2-3 minutes of operation). Once engine is heated up it stops producing white smoke but exhaust still smells very strongly, as if diesel is not combusting properly? ...

...until completely warmed up. keep an eye on the coolant level and top off as necessary. Once the vehicle has warmed up you should start to feel heat. If not rev the engine up a little to help push out ...

...until stopped idling it wants to (.5K or lower revs) or stalls out. Check coolant temp sensor. These fail often and cause all kinds of mystery problems. This unit acts much like a choke on old carb ...

...until it stalls out. I have checked all the sensors that have a heat-related function (O2, IMT,) and they check out. What else can I do? What else can be causing this problem? Those sensors won't ...

heat not real hot until i rev engine my truck had no heat. i flused out heater core and opened my resivior lid and squeezed the hoses.. seen some bubbles but i put lid back on and my truck has some ...

...heat at idle gets hotter when you drive or rev engine Sounds like a bad thermostat, REPLACE IT! And make sure coolant is at proper level. A thermostat should be closed when cold, and wide open at hot ...

...Heat sensitive * Freezing * Water intrusion * Electrical load * Cold or hot start up If you can't isolate the cause of the intermittent problem, you can try adjusting the Idle Speed/Ignition ...